|<- [[Installing Express.js]]|[[Creating routes]] ->|

<code>var express = require('express');

var app = express();

app.get('/', function(req, res) {
  res.send('<h1>😝</h1><p>Hello !</p>')
})

var server = app.listen(3000, function() {
  console.log('Listening on port 3000.');
})
</code>

-> http://expressjs.com/en/4x/api.html